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Changes that help a species survive.
What are adaptations?
Forming of a new species
What is speciation?
Arranging of organisms into groups
What is classification?
Life can arise from nonliving materials
What is spontaneous generation?
Lining up of groups to show the path of biological evolution.
What is Evolutionary Family Tree?
A structure that no longer has a major function
What is vestigial structure?
Similarities that organisms share
What are homologous structures?
Stem cells that come from human embryos
What are embryonic stem cells?
Hypothetical organisms that should exist if evolution were true.
What are missing links?
Source of stem cells that come from already-differentiated tissues of adults or children
What are somatic stem cells?